[master] remove CentOS 7 (EOL 2024-06-30)

Jenkinsfile

@@ -3,7 +3,6 @@
 def branch = env.CHANGE_TARGET ?: env.BRANCH_NAME
 
 def pkgs = [
-    [target: "centos-7",                 image: "centos:7",                               arches: ["amd64", "aarch64"]],          // (EOL: June 30, 2024)
     [target: "centos-9",                 image: "quay.io/centos/centos:stream9",          arches: ["amd64", "aarch64"]],
     [target: "debian-buster",            image: "debian:buster",                          arches: ["amd64", "aarch64", "armhf"]], // Debian 10 (EOL: 2024)
     [target: "debian-bullseye",          image: "debian:bullseye",                        arches: ["amd64", "aarch64", "armhf"]], // Debian 11 (stable)

rpm/Makefile

@@ -56,12 +56,8 @@ RUN?=docker run --rm \
 	rpmbuild-$@/$(ARCH) $(RPMBUILD_FLAGS)
 
 FEDORA_RELEASES ?= fedora-40 fedora-39
-CENTOS_RELEASES ?= centos-7 centos-9
-ifeq ($(ARCH),s390x)
-RHEL_RELEASES ?= rhel-7
-else
+CENTOS_RELEASES ?= centos-9
 RHEL_RELEASES ?=
-endif
 
 DISTROS := $(FEDORA_RELEASES) $(CENTOS_RELEASES) $(RHEL_RELEASES)
 BUNDLES := $(patsubst %,rpmbuild/bundles-ce-%-$(DPKG_ARCH).tar.gz,$(DISTROS))